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Device and method for stripping polyimide copper-clad wire coating layer

A polyimide and coating technology is applied in the field of devices for stripping the coating of polyimide-coated copper wires, which can solve the problems of uneven interface and low stripping efficiency, and achieves improved reliability, improved reliability, and improved reliability. Effect of damage stripping interface

Active Publication Date: 2022-03-04
BEIJING INST OF AEROSPACE CONTROL DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For enameled wires used for precision instrument welding, it is usually necessary to have a neat stripped interface after stripping, and high stripping efficiency is required in mass production. low efficiency

Method used

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  • Device and method for stripping polyimide copper-clad wire coating layer
  • Device and method for stripping polyimide copper-clad wire coating layer
  • Device and method for stripping polyimide copper-clad wire coating layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Enameled wire diameter 0.15mm, coating thickness 0.01mm. Pour the paint stripping powder into an iron crucible, set the temperature at 200°C, heat until the paint stripping powder is completely melted, and keep it warm for 5 minutes. Wind the enameled wire onto the tooling, put it into the linear bearing, insert it vertically into the molten paint remover, and immerse it in the liquid for a length of 10mm, let it stand for 8s, and take it out. Rinse in deionized water for 5 seconds, cut off, and blow dry.

[0051] The surface of the copper core of the enameled wire after removing the coating layer in the embodiment of the present invention is bright and free of oxidation, the coating is completely removed without residue, the boundary is neat, and there is no transition. The total length of the enameled wire is 150 mm, and the coating stripping length is 5 mm. The schematic diagram of the stripping effect of a single enameled wire is as follows Figure 4 shown.

Embodiment 2

[0053] The diameter of the enameled wire is 0.2mm, and the thickness of the coating is 0.015mm. Pour the paint stripping powder into an iron crucible, set the temperature at 210°C, heat until the paint stripping powder is completely melted, and keep it warm for 5 minutes. Wind the enameled wire onto the winding tooling, put it into the linear bearing, insert it vertically into the molten paint stripping solution, the length of immersion in the liquid is 15mm, let it stand for 10s, and take it out. Rinse in deionized water for 5 seconds, cut off, and blow dry.

[0054] The surface of the copper core of the enameled wire after removing the coating layer in the embodiment of the present invention is bright and free of oxidation, the coating is completely removed without residue, the boundary is neat, and there is no transition. root, the schematic diagram of the effect of single stripping is as follows Figure 5 shown.

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Abstract

The invention discloses a device for stripping the coating layer of a polyimide-coated copper wire, comprising a wire winding tool, a motion guiding structure and a heating assembly. The heating assembly includes a heating plate and a crucible. Heating to heat the stripping powder in the crucible to a molten state; the winding tooling includes winding lower support, fast heat insulation, winding column, connecting block and winding support, the connecting block and the linear bearing contact limit, winding The open end of the lower support is clamped with the fast heat insulation side, the fast heat insulation side is fixedly connected with the winding column, and the winding column and the winding support are fixedly connected through a connecting block. The device of the invention has the advantages of batch size, no damage to copper wires, neat stripping interface and the like, and can strip multiple enameled wires at one time.

Description

technical field [0001] The invention relates to a device and a method for stripping a polyimide copper-clad wire coating layer, belonging to the technical field of surface treatment of polymer materials. Background technique [0002] Polyimide-coated enamelled copper wire is referred to as enameled wire for short. It has the advantages of high temperature resistance, good mechanical properties, and excellent insulation performance. It is widely used in high-tech industries such as aerospace, microelectronics, electrical, chemical, and energy technology. In actual use, enameled wires often need to be welded with other electronic components. In order to ensure the welding performance and contact reliability, the polyimide coating layer on the welding part of the enameled wire needs to be stripped before welding. For precision instruments with high reliability requirements, it is usually required that the wire core is not damaged after stripping. There is no coating residue on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R43/28H02G1/12
CPCH01R43/28H02G1/1256
Inventor 严小军邱增帅李彦博刘建梅杨雷
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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